久久久久亚洲AV无码尤物黑人,亚洲美女高潮久久久久久久久久,日韩有无码电影,欧美分类综合中文

歡迎來(lái)到濱州恒通電力器材有限公司網(wǎng)站,我們竭誠(chéng)為您服務(wù)

行業(yè)新聞
當(dāng)前位置:首頁(yè)-資訊中心>行業(yè)新聞地埋示蹤線(xiàn):示蹤線(xiàn),流線(xiàn),跡線(xiàn)的區(qū)別

地埋示蹤線(xiàn):示蹤線(xiàn),流線(xiàn),跡線(xiàn)的區(qū)別

來(lái)源:http://m.audividi.cn/ 發(fā)布時(shí)間:日期:2024-05-17 0

  示蹤線(xiàn):也有人稱(chēng)之為煙線(xiàn),定義是所有經(jīng)過(guò)過(guò)同一位置的流體質(zhì)點(diǎn),在某一時(shí)刻下形成的連線(xiàn)。如果我們?cè)诹鲌?chǎng)中某個(gè)點(diǎn),不斷的釋放不考慮質(zhì)量的煙霧或者墨水,那么這些在同一位置點(diǎn)冒出的煙霧和墨水在某一時(shí)刻時(shí)形成的線(xiàn),就叫做示蹤線(xiàn)。

Tracer line: also known as smoke line, defined as the line formed by all fluid particles passing through the same location at a certain moment. If we continuously release smoke or ink that does not consider mass at a certain point in the flow field, then the line formed by the smoke and ink emitted at the same point at a certain moment is called a tracer line.

  流線(xiàn):沿著流場(chǎng)質(zhì)點(diǎn)速度矢量相切的方向形成的連線(xiàn)。所以流線(xiàn)上任意一點(diǎn)切線(xiàn)的方向,就代表了當(dāng)?shù)亓黧w質(zhì)點(diǎn)的速度方向。流線(xiàn)的稀疏的地方,流場(chǎng)速度小,流線(xiàn)密集的地方,流場(chǎng)的速度大。而且,每一條流線(xiàn)上的速度和壓力的關(guān)系,都滿(mǎn)足伯努利方程。 根據(jù)定義,我們可得知,流場(chǎng)內(nèi)任意兩條流線(xiàn)都不會(huì)相交,因?yàn)橥粋€(gè)流體質(zhì)點(diǎn)不可能同時(shí)具有兩個(gè)不同的運(yùn)動(dòng)方向。記得讀流體力學(xué)書(shū)時(shí),為了加深對(duì)流線(xiàn)的理解,老師告訴我們:每一條流線(xiàn),都可以看作一堵可以自由滑移的壁面,流體可以貼著壁面流動(dòng)、而不會(huì)穿過(guò);這樣解釋流線(xiàn),形象而生動(dòng)。

20230630111615766.jpg

Streamline: a line formed along the direction of tangent to the velocity vector of a particle in the flow field. So the direction of the tangent at any point on the streamline represents the velocity direction of the local fluid particles. In areas with sparse streamlines, the velocity of the flow field is low, while in areas with dense streamlines, the velocity of the flow field is high. Moreover, the relationship between velocity and pressure on each streamline satisfies the Bernoulli equation. According to the definition, we can know that no two streamlines in the flow field will intersect, because the same fluid particle cannot have two different directions of motion at the same time. Remember when reading a book on fluid mechanics, in order to deepen our understanding of streamline, the teacher told us that each streamline can be seen as a wall that can slide freely, and fluid can flow against the wall without passing through it; Explaining the streamline in this way is vivid and vivid.

  根據(jù)流線(xiàn)的定義,我們又可以衍生出流管,想象流線(xiàn)如果起始于流場(chǎng)內(nèi)一個(gè)封閉的環(huán),在流線(xiàn)向后不斷發(fā)展過(guò)程中,又會(huì)有新的封閉的環(huán)產(chǎn)生,這些環(huán)構(gòu)成的面,就稱(chēng)作流管。同樣的,流管也像壁面一樣,把管內(nèi)和管外的流體分割開(kāi)來(lái),而不會(huì)穿透。

According to the definition of streamline, we can also derive a flow tube. Imagine if the streamline starts from a closed loop in the flow field, and as the streamline continues to develop backwards, new closed loops will emerge. The surface formed by these loops is called a flow tube. Similarly, flow pipes act like walls, separating the fluid inside and outside the pipe without penetrating.

  跡線(xiàn):流體質(zhì)點(diǎn)空間位置在時(shí)間歷程上形成的軌跡。所以跡線(xiàn)實(shí)際上描述的是流場(chǎng)信息在一個(gè)時(shí)間段內(nèi)的結(jié)果。它記錄了不同時(shí)刻下跟蹤質(zhì)點(diǎn)空間位置的變化。

Trace: The trajectory formed by the spatial position of fluid particles over time. So the trace actually describes the result of flow field information over a period of time. It records the changes in the spatial position of tracked particles at different times.

以上就是有關(guān):地埋示蹤線(xiàn) 的介紹,想了解更多的內(nèi)容請(qǐng)點(diǎn)擊:http://m.audividi.cn 我們將會(huì)全心全意為您提供滿(mǎn)分服務(wù),歡迎您的來(lái)電!

The above is an introduction to buried tracer lines. For more information, please click: http://m.audividi.cn We will wholeheartedly provide you with full score service. Welcome to call us!

相關(guān)產(chǎn)品 / Related products

  • 地釘

    地釘

  • 地釘

    地釘

  • 警示樁

    警示樁

  • 警示樁

    警示樁

截屏,微信識(shí)別二維碼

亚洲欧美日韩精品在线一区 | 欧美性感视频网站免费观看| 色呦呦日韩专区在线| 亚州老熟妇免费高清av| 一片黄一片视频| 成人综合色成人网| 欧美日韩人妻精品系列一区二区三 | 天天躁狠狠躁久久久久久久| 在线。日韩。一区| 成人久久金久久噜| 色综合久久一区| 亚洲色欲天天宗| 欧美激情国内在线| 男人精品一区| 亚洲高清无码不卡| 激情站偷拍| 久久久久久成二精品少妇| 日韩中文字幕高潮| 欧洲日本久精品| 日韩视频在线免费| 色老大亚洲| 日韩毛片 久久| 中文字幕稀缺资源| 日欧理论在线免| 天堂网天天日天天操| 日韩伦理精品在线一二三四区| 日韩无码。com| 白嫩国产二区在线| 日产成人精品一区| 黄激情老熟妇| 亚洲AV浅仓彩音AV8888| 日韩精品视频播放| 草草在线2| a久久天堂国产毛片精品 | A日本久久久久久| 曰B免费在线观看视频| 天堂一区二区域| 少妇又紧又深又湿又爽视频 | 久久成人免费日本| 熟女丝袜精品一区| 五月婷婷无码一区二区三区|